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4 2 Sheets-Sheet l. KLNIK, F. PINKOWSKI 8v A. GROSS.

(No Model.) G

SAFETY DEVICE FOR ELEVATORS.

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' (No Model.)

2 sheetssheet 2'.

G. KLINIK, F. PINKOWSK 8u A. GROSS.

SAFETY DEVICE EUR ELEVATOES.

Patented June l2, 1888.

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l 25 provided in brackets i, secured to the upper UNITED STATES PATENT Omron.

CONSTANTIN KLINIK AND FRIEDRICH PINKOW'SKI, OF KNIGSH'I'TE, AND AUGUST GROSS, OF BEUTHEN, PRUSSIA, GERMANY.

SAFETY DEVICE FOR ELEVATORS.

SPECIFICATION forming part oi Letters Patent No. 384,319, dated .Tune 12, 1888.

Serial No. 262,520. (No model.)

To cz/ZZ when@ if, 'may concern.-

Be it known that we, CONSTANTIN KLINIK and FRIEDRICH PINIowsIII, both residing at Knigshiitte, Germany, and AUGUST GROSS,

5 residing at Beuthen, Germany, all subjects of the King of Prussia, German Empire, have in vented certain new and useful Improvements in Safety-Clutches for Elevator-Cages, ofwhich the following is a specification.

Thisinven tion relates to an improved safetyclutch for elevator-cages; and the invention consists in thevarious features ofimprovement more fully pointed out in the claim.

In the accompanying drawings, Figure l is a I5 side view of an elevator-cage, showing ourinr proved clutch out of action. Fig. 2 is a simi lar View showing the clutch in action. Fig.

3 isa vertical transverse section, partly in side view ofthe same. Figs. 4 to S are details ofthe 2o different parts of the clutch.

The clutch-arms h consist each of two symA metric parts, Figs. 3, Ll, and 5. The upper ends of said arms are mounted on square journals of the shafls XV, carried in bearings frame, A. On the center of the Shafts W' levers n are mounted, connected by link-r0ds m to the transverse plate f of the spring F, to

which the suspension-rope is secured. When 3o the cageisweighted,thespring will bestretched as long as the cable is unbroken. .The arms IL will then remain in the position shown in Fig.

l, ata distance from the beam or guide-bar L.

As soon as the cable breaks the spring F will 33 contract, the joint and lever-arms m a will be forced down, and the shafts XV turned so as to force the lower ends of the arms 7L toward each other.

The two parts or sides of the arms h have 4o longitudinal slots s, one side of said slots being toothed. XVith each of the racks thus formed a pinion, V, is in gear, said pinion being mounted on the axis of a toothed wheel, C,

arranged between the two sides of the arms h.

It will be obvious that when the cable breaks 45 the said toothed wheels O will be forced against the guide-beam L of the shaft, and as the angle formed by the arms 7L and the said beam is now Inore acute the wheels will catch into the wood. The stoppage, however, will 5o not be sudden, but while the cage is moving for some distance down, the wheels G will move upward in the slotted arms 7L from the posi tion shown in Fig. l to that shown in Fig. 2, after which a complete stoppage will be obtained.

The lower ends of the slotted arms h are made with a slot, o, through which a pin, as, passes, (see Fig. 6,) said pin passing likewise through slots Iw made in guides b, Fig. 7, at- 6o tached to the lower part ot' the frame to guide the lower ends of the arms hand allow the above-described side motion ofthe same. In shafts with iron guides for the cage, instead of wooden beams, the said guide-bar must be toothed and the wheels C be cogged to the same pitch. IVhile with wooden beams theinjured parts ofthe wood must be replaced, such repairs are not necessary when irontoothed gnidebars are used.

In asafetyelutch for elevators, the combination of the spring F, the toggle-links m n, the slotted arms h, the guides b, the toothed wheels V, provided with pinions adapted to work in the slots in the arms h, and the guide-beams L, all substantially as described.

In testimony whereof we hereunto sign our names, in the presence of two subscribing witnesses, this 31st day of October, 1887.

CONSTANTIN KLINIK. FRIEDRICH PINKOYVSKI.' AUGUST GROSS. 1Witnesses:

AUGUST Lnsenniin, GEORG Gnoss, 

